B747 Propulsion

8/12/2019 B747 Propulsion

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Propulsion System of Boeing 747

Group Members:

Shamsuddin

Mustazly

Hidayat

Pearl


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What is Boeing 747?

Also know as B-747 or B747

Used for crossing oceans

Double decked plane


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Exterior View


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Interior View


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Cross Section View


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TURBOFAN


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What is Turbofan ?

Designed as a compromised between the

turboprop (fuel efficient but noisy) and turbojet

(powerful yet thirsty)

Has large internal propeller or ducted fan and two

streams of air flowing in the engine.

Main stream goes into all of the components like a

turbojet

The secondary flow passes through the fan and is

either ducted through a second nozzle or mixed

back with the main stream leaving the turbine.


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Can be classified as:

Mixed or unmixed

Low or high by passSingle, two or three spool

With or without after burning

Geared or ungeared

Nuclear of non-nuclear

Characteristics:

Widely used today

Capable of medium to high thrust

Capable of supersonic speed

Better fuel efficiency


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THE WORKING


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1. The fan will suck the air into compressor.

2. The compressor will squeeze and compress the air.

3. The air will be mixed with oil and burn inside the combustion chamber.

4. The air will be force out into the turbine and power the turbine to rotate.

5. The turbine will power the compressor to rotate.

6. The air will be blown outside the nozzle.


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Animation of a 2-spool, high-bypass

turbofan.A. Low pressure spool

B. High pressure spool

C. Stationary components

1. Nacelle

2. Fan

3. Low pressure compressor4. High pressure compressor

5. Combustion chamber

6. High pressure turbine

7. Low pressure turbine

8. Core nozzle

9. Fan nozzle


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Type of engines

High bypassLow bypass


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Engine Series

General Electric (GE)

CF6 - Type of engine: High bypass turbofan

- Thrust range : 40,000 - 72,000 lbs.

- Introduction : 1971

Rolls Royce

RB211-524 - Type of engine: High bypass turbofan

- Thrust range: 37,400 - 60,600lbs

- Introduction: 1997

Pratt & Whitney

JT9D-7 - Type of engine: High bypass turbofan

- Thrust range: 46,300 - 50,000 lbs

- Introduction: 1970


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1. Horsepower of 1 Engine125,000hp

3. Average altitude35,00037,000 feet

2. Maximum altitude45,100 feet

4. How far can B747 fly?7,260 nm

(13,450km)

5. How long can B747 fly? 16 to 19 hours

with fuel saving6. How far can B747 glide without fuel?

- At Altitude 42,000 ft136 miles

- At Sea Level100miles


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7. Only B747-400 from B747 family have afterburner.

8. Life span of an B747 aircraft- Average 25 to 30 years (large number of cycles)

** Others - 20 years (small number of cycles)

9. B747s engines are mixed nozzle

10. The 747-400 was touted as the fastest subsonic

commercial airliner in service (913km/h).- Cruised at 0.85 Mach (85 % of the speed of sound)

- Pratt & Whitney, generated the most powerful 747-

400 engine with 63,300 lb (28,712 kg) thrust each


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Die!!!!

Hahaha..

Just kidding ^^

Still able to proceed

to your destination


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Why?

Alight 747 can stay with only two engines, but

not a heavy one. The one engine is needed to

power the hydraulics.

Which mean a B747 still able to fly with 3

engines.

Thenwhy need 4 engines??Backup


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Model Certification First Airline in service Last Delivery747-100/SR/B 30/12/69 Pan Am 9/86

Japan Air Lines

747-200 23/12/70 KLM 12/90USAF747-200F 03/07/72 Lufthansa 11/91

Nippon Cargo

747-200C 24/07/73 World Airways 9/88Martinair

747SP 04/02/76 Pan Am 12/09/89Abu Dhabi Govt.

747-200M 03/07/75 Air Canada12/09/89 -

Abu Dhabi Govt. (UAE)

747-300M 03/05/83 Swissair 9/90Sabena

747-300/SR 03/07/83 Swissair 10/88Japan Asia

747-400 01/10/89 Northwest747-400M 01/10/89 KLM 04/10/02

KLM

747-400D 10/10/91 Japan Air Lines 12/95All Nippon Airways

747-400F 22/10/93 Cargolux 5/7/09Nippon Cargo Airlines

747-400ER 29/10/02 Qantas 7/30/03Qantas

747-400ERF `16/10/02 Air France 11/10/09LoadAir Cargo

747-8F 19/08/11 Cargolux747-8 14/12/12 Lufthansa


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ENGINE TYPE

Pratt & Whitney (PW)


Rolls-Royce (RR)

ENGINE MODEL

PW JT9D-7A/-7F/-7J

RR RB211-524B2

GE CF6-45A2 (747SR)

ENGINE SPEC

Max speed : 967km/h(522knot) ; Mach 0.89

Cruising speed :907km/h (490knot) ;Mach 0.84

Engine thrust :

PW 46,500 lbf, (207kN),

RR 50,100 lbf, (223 kN)


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ENGINETYPE

Pratt & Whitney

(PW)

General Electric(GE)

Rolls-Royce (RR)

ENGINEMODEL

PW

JT9D-7R4G2

GE

CF6-50E2

RR

RB211-524D4

ENGINESPEC

Max speed : 967km/h(522knot) ; Mach 0.89

Cruising speed : 907km/h(490knot) ; Mach 0.84

Engine thrust :

PW 54,750 lbf (244 kN)

GE 52,500 lbf (234 kN)

RR 53,000 lbf (236 kN)


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ENGINE TYPE

ENGINE MODEL

ENGINE SPEC



Rolls-Royce (RR)

PW JT9D-7R4G2

GE CF6-80C2B1

RR RB211-524D4

Max speed : 967km/h (522knot) ; Mach0.89

Cruising speed : 907km/h (490knot) ;Mach 0.84

Engine thrust :

PW 54,750 lbf (244 kN)

GE 55,640 lbf (247 kN)

RR 53,000 lbf (236 kN)


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ENGINE TYPE



Rolls-Royce (RR)

ENGINE MODEL

PW 4062

GE CF6-80C2B5F RR RB211-524G/H

ENGINE SPEC

Max speed : 988 km/h

(533 knots) ; Mach 0.85

Cruising speed : 912km/h

(493knots); Mach 0.92

Engine thrust :

PW 63,300 lbf (282 kN)

GE 62,100 lbf (276 kN)

RR 59,500/60,600lbf

(265/270 kN)


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EN

GINETY

PE

GeneralElectric (GE)

ENG

INEMOD

EL

GEnx-2B67

EN

GINESP

EC

66,500 lbf(296 kN)


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References Ronald D.Flackn, Fundamentals of Jet Propulsion with

Application, Cambridge Aerospace Series, 2005. Thomas A. Ward, Aerospace propulsion Systems,John

Wiley & Sons (Asia) Pte Ltd, 2010

http://www.boeing.com/boeing/commercial/747family/pf/pfdomestic_prod.page

http://wiki.answers.com/Q/Average_flying_height_for_a_Being_747_in_miles#slide4

http://www.pw.utc.com/JT9D_Engine

http://www.rolls-royce.com/civil/products/largeaircraft/rb211_524/

http://www geaviation com/

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B747 Propulsion